Profile: Q-par Angus Ltd specializes in RF & microwave engineering and antenna positioning systems. Our products include antenna positioners, horn antennas, reflector antennas, broadcast antennas, sprial antennas, omni directional antennas and antenna tripods. Our rugged computer controlled ELINT (ELectronic INTelligence) system is ideal for broadband surveillance. The system is capable of complex scan control with rotation speeds of up to 200 rpm. It is computer controlled via a single RS232/USB or Ethernet connection. The control software allows different modes of operation, these include continuous rotation, sector scan, stare and nudge. The system is housed within an environmentally sealed radome for outdoor use. We produce a new range of omnidirectional antennas from 2 to 42.5 GHz. These include vertical, horizontal and slant linear polarisations. 0.9 - 20 GHz omni-directional antenna provides operation over an extremely wide bandwidth from an incredibly small antenna size. This antenna has been previously used for communications to aircraft as the antenna has its peak gain in a slightly upward looking direction.